CN208282700U - Reduce the device of rock convergence measure in a kind of photoface exploision - Google Patents
Reduce the device of rock convergence measure in a kind of photoface exploision Download PDFInfo
- Publication number
- CN208282700U CN208282700U CN201820868509.1U CN201820868509U CN208282700U CN 208282700 U CN208282700 U CN 208282700U CN 201820868509 U CN201820868509 U CN 201820868509U CN 208282700 U CN208282700 U CN 208282700U
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- China
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- pvc
- cavity
- explosive
- photoface exploision
- metal gasket
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Abstract
The utility model discloses the devices for reducing rock convergence measure in a kind of photoface exploision, including PVC blasting cartridge, PVC blasting cartridge includes inner and outer tubes, the cavity of two semi-annular shapes is divided into cavity between outer tube and inner tube by PVC partition, in the cavity of two semi-annular shapes, respectively the foam chamber of filled polystyrene foam and filling water water cavity；Inner tube is the explosive chamber for filling explosive, and metal gasket is filled in explosive chamber.High temperature that the present apparatus is generated according to explosion, high pressure play good buffering effect under the squeezing action of explosive load to the damage effect of PVC material and polystyrene.Metal gasket is placed between explosive and pvc pipe and polystyrene ensure that protection of the polystyrene foam to country rock.The present apparatus is simple and practical, and demolition effect is good, is worthy of popularization.
Description
Technical field
The utility model relates to reduce the device of rock convergence measure in smooth Surface Blasting Technology field when periphery hole explosion, mainly answer
Reduce the damage to country rock when excavating for mountain tunnel drilling and blasting method, forms smooth, smooth excavation face, avoid out break.
Background technique
Photoface exploision is a kind of Controlled blasting technique for making tunnel surrounding periphery form smooth excavation face.This method is excavated certainly
Center appropriate location to the excavation contour line of section is sequentially arranged keyhole, via hole, periphery hole (light blast hole), according to by it is interior to
Outer sequence and certain time interval is successively detonated.The scope of freedom can be generated after keyhole and via hole explosion to periphery hole to subtract
The clamping action of few inside rock mass, when periphery hole explosion, can suitably reduce explosive consumption, reduce blasting vibration to peripheral rock
It destroys, keeps tunnel excavation contoured surface smooth.
The periphery hole explosion of photoface exploision is in terms of it can be divided into two in the requirement of technical effect: being on the one hand by tunnel excavation
The lumpiness that rock crushing within mixed profile is required at shipment is adapted to；Another aspect is that the country rock other than tunnel excavation contour line exists
It is damaged after explosion without obvious explosion.Currently, usually utilizing the side of air-decouple charge in the periphery hole explosion of photoface exploision
Method reduces damage of the explosive load to country rock.This method has played effect in terms of reducing rock convergence measure, but this method is not
The country rock that need to be protected and the rock mass that need to be crushed are treated with a certain discrimination, tunnel excavation is not mixed profile while reducing rock convergence measure
Within rock mass it is sufficiently broken.For air-decouple charge the photoface exploision periphery hole explosion the drawbacks of, there is scholar to propose
Double media not Coupling Fracture control explosion new method.This method is placed inside blasting cartridge by production abnormity PVC blasting cartridge
Explosive needs kata-rocks side to fill water in blasting cartridge close to country rock side need to be protected to fill air in blasting cartridge.Utilize air
The physics and biography energy property different with water, controls the release process and action direction of explosion energy, to reach controlled fracturing blasting side
To playing avalanche side rock and protect the purpose of other side rock.Double media are not used in Coupling Fracture control blasting method
Blasting cartridge is pvc pipe, which easily occurs large deformation under explosive load effect.Meanwhile blasting cartridge need to protect country rock close
The air of side filling, air is not easy closed in engineering practice, easily spreads under the squeezing action of explosive load, to can not rise
To good buffering effect.For some drawbacks of existing blasting technique, the utility model proposes subtract in a kind of photoface exploision
The device of small rock convergence measure.
Utility model content
The purpose of this utility model is to provide the devices for reducing rock convergence measure in a kind of photoface exploision, in photoface exploision
To the control of demolition effect when periphery hole explosion.On the one hand tunnel excavation should be mixed to the rock crushing within profile fill at adaptation
Transport desired lumpiness；Damage the country rock other than tunnel excavation contour line after explosion without obvious explosion.This
Device makes improvement for some problems existing for this method on the basis of the not Coupling Fracture control blasting method of double media.
In order to achieve the above objectives, the embodiments of the present invention adopt the following technical scheme that
According to one embodiment provided by the utility model, the utility model, which provides in a kind of photoface exploision, reduces country rock
The device of damage, including PVC blasting cartridge, PVC blasting cartridge include inner and outer tubes, in the cavity between outer tube and inner tube by
PVC partition is divided into the cavity of two semi-annular shapes, and in the cavity of two semi-annular shapes, respectively filled polystyrene steeps
The foam chamber of foam and the water cavity of filling water；Inner tube is the explosive chamber for filling explosive, and metal gasket is filled in explosive chamber.
For above-mentioned technical proposal, there are also further preferred schemes for the utility model:
Further, the PVC blasting cartridge is long tubular structure, and the blasting cartridge both ends for filling the water cavity of water are sealed with rubber
Plug.
Further, the metal gasket is filled in the explosive chamber of foam chamber side.
Further, the metal gasket length is identical as PVC explosion length of tube, and spacer thickness is 2~5mm.
Further, the metal gasket is iron plate or copper sheet.
Further, the outer tube is twice of diameter of inner pipe.
The characteristics of the utility model, is:
The utility model is based on double media, and Coupling Fracture control blasting method not will be close to preferably protect country rock
Country rock side filler need to be protected using polystyrene foam.Polystyrene foam can effectively absorb quick-fried as filled media
Fried energy, reduces the peak impact pressure of blasthole wall, reduces the damage zone range of concrete, avoid compressing at borehole hole wall
Disintegrating area.Polystyrene foam will not be spread for being compared to air, still be able to play under the squeezing action of explosive load
The effect of buffering.The high temperature of explosion generation, high pressure have damage effect to PVC material and polystyrene, in squeezing for explosive load
Under pressure effect, good buffering effect is played.Placement metal gasket ensure that poly- between explosive and pvc pipe and polystyrene
Protection of the styrenic foams to country rock.The present apparatus is simple and practical, and demolition effect is good, is worthy of popularization.
Detailed description of the invention
Fig. 1 is utility model device transverse sectional view；
Fig. 2 is utility model device longitudinal cross-section schematic diagram.
In figure: 1-PVC blasting cartridge；2- foam chamber；3- metal gasket；4- explosive chamber；5- water cavity；6- rubber stopper.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
As shown in Figure 1 and Figure 2, reduce the device of rock convergence measure in the photoface exploision of the utility model, including a PVC is quick-fried
Broken pipe 1, PVC blasting cartridge 1 include inner and outer tubes two parts, by PVC partition by its point in the cavity between outer tube and inner tube
It is divided into the cavity of two semi-annular shapes, in the cavity of two semi-annular shapes, respectively 2 He of foam chamber of filled polystyrene foam
Fill the water cavity 5 of water；Inner tube is the explosive chamber 4 for filling explosive, and metal gasket 3 is filled in explosive chamber 4, and metal gasket 3 is filled out
It fills in the explosive chamber 4 close to 2 side of foam chamber.PVC blasting cartridge is long tubular structure, fills the blasting cartridge both ends of the water cavity 5 of water
It is sealed with rubber stopper 6.Metal gasket length is identical as PVC explosion length of tube, and spacer thickness is advisable with 2~5mm.Metal gasket is adopted
With iron plate or copper sheet.
When production, explosion bore is determined first, in accordance with the dose that explosion designs, determines blasting cartridge according to the not coefficient of coup
Outer diameter makes PVC blasting cartridge 1 according to the dimension of inner and outer diameters of blasting cartridge and blasthole length.PVC explosion pipe size need to be according to reality
The size of blasthole is determined in engineering, and the diameter of exterior tubular body is twice of internal pipe diameter.Polystyrene foam filling
Object needs to be processed according to being slightly less than semicircle ring size, is convenient for for foam insert being filled in blasting cartridge in this way；Upper chambers
Body filled polyethylene foamed plastics fills water inside lower cavity, PVC blasting cartridge is vertically put without carrying out special filling processing
It sets, injects water into lower cavity with water pipe, blocked the other end of cavity with rubber stopper.Both ends need to be clogged with sealed rubber plug
To prevent water from leaking, to preferably play filling water body to the buffer function of Blast Load.Tube body inside PVC blasting cartridge
Center be equipped with explosive chamber, metal gasket be placed in explosive chamber close to filled with polystyrene foam cavity semi circular surface on.Make
The demolition set is placed in blasthole by the used time, and is ignited.
The utility model is not limited to above-described embodiment, on the basis of technical solution disclosed by the utility model, this
For the technical staff in field according to disclosed technology contents, not needing creative labor can be special to some of which technology
Sign makes some replacements and deformation, these replacements and deformation are within the protection scope of the present utility model.
Claims (6)
1. reducing the device of rock convergence measure in a kind of photoface exploision, it is characterised in that: including PVC blasting cartridge, PVC blasting cartridge includes
Inner and outer tubes, are divided into the cavity of two semi-annular shapes in the cavity between outer tube and inner tube by PVC partition, and two
In the cavity of semi-annular shape, respectively the foam chamber of filled polystyrene foam and filling water water cavity；Inner tube is filling explosive
Explosive chamber, in explosive chamber be filled with metal gasket.
2. reducing the device of rock convergence measure in a kind of photoface exploision according to claim 1, it is characterised in that: the PVC
Blasting cartridge is long tubular structure, and the blasting cartridge both ends for filling the water cavity of water are sealed with rubber stopper.
3. reducing the device of rock convergence measure in a kind of photoface exploision according to claim 1, it is characterised in that: the metal
Gasket is filled in the explosive chamber of foam chamber side.
4. reducing the device of rock convergence measure in a kind of photoface exploision according to claim 3, it is characterised in that: the metal
Gasket length is identical as PVC explosion length of tube, and spacer thickness is 2~5mm.
5. reducing the device of rock convergence measure in a kind of photoface exploision according to claim 3, it is characterised in that: the metal
Gasket is iron plate or copper sheet.
6. reducing the device of rock convergence measure in a kind of photoface exploision according to claim 1, it is characterised in that: the outer tube
It is twice of diameter of inner pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820868509.1U CN208282700U (en) | 2018-06-06 | 2018-06-06 | Reduce the device of rock convergence measure in a kind of photoface exploision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820868509.1U CN208282700U (en) | 2018-06-06 | 2018-06-06 | Reduce the device of rock convergence measure in a kind of photoface exploision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208282700U true CN208282700U (en) | 2018-12-25 |
Family
ID=64705826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820868509.1U Expired - Fee Related CN208282700U (en) | 2018-06-06 | 2018-06-06 | Reduce the device of rock convergence measure in a kind of photoface exploision |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208282700U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109405687A (en) * | 2018-12-28 | 2019-03-01 | 钦州学院 | Underwater Cutting Seam Cartridge Blasting device and its construction method based on Uncoincided charge |
| CN110701969A (en) * | 2019-11-08 | 2020-01-17 | 中国矿业大学(北京) | Rock crushing device and crushing method |
| CN111197950A (en) * | 2020-02-27 | 2020-05-26 | 安徽理工大学 | Wave-blocking energy-dissipating based damage effect reduction blasting method |
| CN112393656A (en) * | 2020-11-11 | 2021-02-23 | 中国人民解放军陆军工程大学 | Multipoint mode gathers can blasting loaded constitution |
| CN113008091A (en) * | 2021-03-05 | 2021-06-22 | 南京工业大学 | Energy-gathering buffering device and method for improving smooth blasting effect of tunnel |
-
2018
- 2018-06-06 CN CN201820868509.1U patent/CN208282700U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109405687A (en) * | 2018-12-28 | 2019-03-01 | 钦州学院 | Underwater Cutting Seam Cartridge Blasting device and its construction method based on Uncoincided charge |
| CN109405687B (en) * | 2018-12-28 | 2023-06-30 | 北部湾大学 | Underwater kerf explosive charge blasting device based on uncoupled explosive charge and construction method thereof |
| CN110701969A (en) * | 2019-11-08 | 2020-01-17 | 中国矿业大学(北京) | Rock crushing device and crushing method |
| CN111197950A (en) * | 2020-02-27 | 2020-05-26 | 安徽理工大学 | Wave-blocking energy-dissipating based damage effect reduction blasting method |
| CN112393656A (en) * | 2020-11-11 | 2021-02-23 | 中国人民解放军陆军工程大学 | Multipoint mode gathers can blasting loaded constitution |
| CN113008091A (en) * | 2021-03-05 | 2021-06-22 | 南京工业大学 | Energy-gathering buffering device and method for improving smooth blasting effect of tunnel |
| CN113008091B (en) * | 2021-03-05 | 2022-03-08 | 南京工业大学 | Energy-gathering buffering device and method for improving smooth blasting effect of tunnel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181225 Termination date: 20210606 |
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| CF01 | Termination of patent right due to non-payment of annual fee |